Backgrounds applied to modules or content slides can have their opacity adjusted to help stylize and define the content.
To adjust module background opacity, select the module and click the Style Wheel (1).
From the Style Menu on the left, select the Edit Icon (2) under Customize Style.
Under the Customize Style menu, scroll down to Background where you can select a solid color from the Color Picker or an image of your choice.
If you selected a color, use the Color Opacity slider (3) to adjust the level to your liking. If you selected a background image, use the Image Opacity slider (4) instead.
To adjust content slide background opacity. select your slide and click the Style Wheel (1) on the right side of your ePortfolio. Then after selecting an image or color from the Color Picker from the menu on the left, you can adjust the Background Opacity (2) to meet your stylistic needs.